A homeless boy is the key to a string of murders and kidnappings that take the CSI team into the darkside of pornography and the international sex trade. Can they capture the killers before the boy becomes the next victim?

What if Grissom and Sara were more than friends before Grissom asked Sara to help with the Holly Gribbs investigation? How would that have altered their story? A GSR twist to CSI episodes with an added backstory.